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ZFrac Zoom Commands on the TI-84 Plus

The ZFrac1/2, ZFrac1/3, ZFrac 1/4, ZFrac1/5, ZFrac 1/8, and ZFrac1/10 zoom commands enable you to trace graphs on your TI-84 Plus calculator by fraction steps.

  • ZFrac1/2 zoom command on the TI-84 Plus: This command graphs your function in a preset viewing window where

    image0.jpg

    It is accessed by pressing [ZOOM][ALPHA][APPS], or by pressing [ZOOM] and using the up-arrow key to scroll to ZFrac1/2.

    When you trace a function graphed in a ZFrac1/2 window, the x-coordinate of the Trace cursor will be a multiple of 1/2.

  • The TI-84 Plus calculator's ZFrac1/3, ZFrac 1/4, ZFrac1/5, ZFrac 1/8, and ZFrac1/10 commands: These commands graph your function in a preset viewing window and work in the same manner as ZFrac1/2 does. If you think of d as the denominator of your fraction, then the viewing window is

    image1.jpg

    Tracing with these commands enables you to trace the x-coordinates by multiples of 1/d.

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